In Mercurial before 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the repository. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.4.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-17458.json"